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[Question #295051]: Stop Sending UDP Checksum from compressor end

To: rohc@xxxxxxxxxxxxxxxxxxx
From: Mohammad Abyan Abdullah <question295051@xxxxxxxxxxxxxxxxxxxxx>
Date: Wed, 08 Jun 2016 13:43:13 -0000
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New question #295051 on rohc:
https://answers.launchpad.net/rohc/+question/295051

Hi!!
  Didier is it possible I can stop sending UDP checksum from compressor end and we can recalculate at decompressor the checksum again and add it again ? This way I think we can save few bits when we are not sending the checksum bit. Asterisk can do this by using 
setsockopt(s, SOL_SOCKET, SO_NO_CHECK, &nochecksums, sizeof(nochecksums)). for each rtp ports.
 
But no other software has that feature available. At rfc also says

The LLA profile is obviously not applicable if the UDP checksum (2
   bytes) is enabled, which is always the case for IPv6/UDP.  For
   IPv4/UDP, the sender may choose to disable the UDP checksum.

So if its possible it might save us few bits. What you think ?

Regards
Abyan

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